# Pneumocephalus and empyema in the subarachnoid space: An unusual imaging feature secondary to spinal-epidural anesthesia

## TL;DR

A rare case of pneumocephalus and empyema in the subarachnoid space following spinal-epidural anesthesia is reported, highlighting a serious complication.

## Contribution

This is the first reported case of pneumocephalus and empyema in the subarachnoid space after spinal-epidural anesthesia.

## Key findings

- An older woman developed pneumocephalus and subarachnoid empyema after spinal-epidural anesthesia.
- The infection was caused by Staphylococcus epidermidis.
- Imaging features were described to raise awareness of this rare complication.

## Abstract

Pneumocephalus and empyema in the subarachnoid space secondary to spinal-epidural anesthesia are very rare and have not previously been reported, to our knowledge. Here, we describe the imaging features of an older woman presenting with pneumocephalus plus subarachnoid and intraventricular empyema due to Staphylococcus epidermidis infection after spinal-epidural anesthesia, with the aim of raising awareness regarding this serious complication.